I usually cast COWW at 700 - 725 degrees, but the mold temperature is more important than the pot temperatures. Once the mold is warm enough to fill out, I regulate its temperature by adjusting the time between pours. I guess some people try to speed things up by cooling the mold on a wet pad between pours, but I've never gotten that motivated.

The gas checks come off easy after running through a 432 Lube/Sizer...should I be concerned?

MQ1

Thank you very much for the feedback on the bullets. Glad to hear that they function OK.

Gas checks coming off is an annoyance at the loading bench, and possibly a threat to your chronograph. The affect on accuracy is minimal.

Be aware that the check shank is susceptible to "heat shrink" when the mold is too hot. It's a very common problem with heavy bullets, more so with certain alloys. To some extent I try to compensate by making the check shank err on the big side, but I can't cut it too big or else you wouldn't be able to put the checks on.

I had a friend from another sight run some quickload numbers for the 325 mold you made me. Below you will find the data, which I’ll be working from in the near future. H4198 was the best suggested powder: